TY - JOUR
T1 - Luminescence and energy transfer in Sr2GdxY 7.9-xLn0.1(SiO4)6O2 (Ln = Sm, Dy, Eu)
AU - Chu, Benli
AU - Guo, Chongfeng
AU - Su, Qiang
PY - 2004/4
Y1 - 2004/4
N2 - Several rare earth activators (Dy3+, Sm3+, Eu 3+) doped nanocrystalline and microcrystalline Sr2Gd xY7.9-x(SiO4)6O2 are synthetized by sol-gel method. The luminescence and the energy transfer properties from Gd3+ to Ln3+ are studied. The results show that the energy transfer efficiency from Gd3+ to Ln 3+ is in the sequence Sm3+ < Eu3+ < Dy3+ in the nanocrystals, in the microcrystals the sequence is different, and compared to the counter microcrystals, the value of energy transfer efficiency in the nanocrystals from Gd3+ to Ln3+ is lower.
AB - Several rare earth activators (Dy3+, Sm3+, Eu 3+) doped nanocrystalline and microcrystalline Sr2Gd xY7.9-x(SiO4)6O2 are synthetized by sol-gel method. The luminescence and the energy transfer properties from Gd3+ to Ln3+ are studied. The results show that the energy transfer efficiency from Gd3+ to Ln 3+ is in the sequence Sm3+ < Eu3+ < Dy3+ in the nanocrystals, in the microcrystals the sequence is different, and compared to the counter microcrystals, the value of energy transfer efficiency in the nanocrystals from Gd3+ to Ln3+ is lower.
KW - Luminescence
KW - Nanostructures
KW - Sol-gel growth
UR - http://www.scopus.com/inward/record.url?scp=1342329739&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2003.08.024
DO - 10.1016/j.matchemphys.2003.08.024
M3 - Article
AN - SCOPUS:1342329739
SN - 0254-0584
VL - 84
SP - 279
EP - 283
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
IS - 2-3
ER -